Open a post, then touch the three dots at the top to open the menu, then go to sort and select the one you want.

For some reason, lemmy.world dont like the old one, but all the others work

After this, the part where he trespass and try to open the locked door without any authorization got even more creepier… :|

Actually, hello.1@gmail will go to hello1@gmail.

The one you are thinking I believe is hello+1@gmail will go to hello@gmail